5-1/4", US

US Fasteners

Hex bolt

Hex bolts

Bolts with hexagonal heads and machine threads for use with a nut or in a tapped hole. Also known as hex cap screws or machine bolts.
Socket product

Socket screws

Screws with an allen wrench drive.
Rod & Stock

Studs, Rod & Stock

Studs, threaded rod, unthreaded rod and keystock for industrial, machining and manufacturing applications.
Anchors

Anchoring products

Fasteners for anchoring in stone, concrete, brick, and drywall, etc.